12805191

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{463}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 21232640

約数和(自身を除く): 8427449

約数列:

[1, 3, 7, 9, 21, 63, 439, 463, 1317, 1389, 3073, 3241, 3951, 4167, 9219, 9723, 27657, 29169, 203257, 609771, 1422799, 1829313, 4268397, 12805191]

約数ペア:

[(1, 12805191), (3, 4268397), (7, 1829313), (9, 1422799), (21, 609771), (63, 203257), (439, 29169), (463, 27657), (1317, 9723), (1389, 9219), (3073, 4167), (3241, 3951)]